The IGF will make you tired if you don't get enough carbs. It made me really hypo at first. It will also make you achey as it repairs worn joints and cartiledge..this can feel a lot like bad arthritis but it goes away after a week or two.

I'd pester your doctor over the other symptoms though. They don't don't sound very reassuring. Monitor that BP and heart rate as it really could indicate something serious.